Given State Table

 q |    x=00   x=01   x=10   x=11   |    z

 --|--------------------------------|-----

 A |     B      A      F       D    |    1

 B |     E      A      D       C    |    1

 C |     A      F      D       C    |    0

 D |     A      A      B       C    |    1

 E |     B      A      C       B    |    1

 F |     A      F      B       C    |    0

 States A-E , B-D and C-F are equivalent

 q |    x=00   x=01   x=10   x=11   |    z

 --|--------------------------------|-----

 A |     B      A      C       B    |    1

 B |     A      A      B       C    |    1

 C |     A      C      B       C    |    0